1040650406 has 32 divisors (see below), whose sum is σ = 1694684160. Its totient is φ = 477683136.

The previous prime is 1040650399. The next prime is 1040650411. The reversal of 1040650406 is 6040560401.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181130 + ... + 186786.

It is an arithmetic number, because the mean of its divisors is an integer number (52958880).

Almost surely, 2^1040650406 is an apocalyptic number.

1040650406 is a deficient number, since it is larger than the sum of its proper divisors (654033754).

1040650406 is a wasteful number, since it uses less digits than its factorization.

1040650406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5828.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1040650406 is about 32259.1135340077. The cubic root of 1040650406 is about 1013.3705665230.

The spelling of 1040650406 in words is "one billion, forty million, six hundred fifty thousand, four hundred six".